Tire-testing machine.



K. W. SONNTAG.

TIRE TESTING MACHINE.

APPLIUATION FILED oa'r.1o,1912.

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K. W. SUNNTAG'.

URB TESTING MAGHNE.

PPLIGATION FILED 00T. 10,;1912.

Patented July 22, 1913.

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im. 'W'. Semmai@ ai A, iesifiingg; et invented ce1'- Timpievememi' in Tife which the llzwng is feieee te machines fer i mi vehieee mui has. fm its n mf :i machine eompiie iii; L :ipiieigr pizeyided i'eeemeliiig the different nys wei' which Vehicles ordici iis-hee] being adapted ie he @werent speeds to be' iiideziied wmimiietei', :15nd eiicabiy ii'iomiting le smid, Wheeis sim-teexi which are i'he wheels 'e be iesei'i, the enel seid wheels ifeing sfegriizied as operaie?. "en in Wiii be iezeribed in detail.

iii @timed in the accompaiii which, iep pien View ei my imiiiaiehine; 'ig, i?, are emi s de. View in elevation; md eiiiiii cross sectional View 0i 'im die tii'zivviiig'e eiireiliii reference cimmeieee ie designate eeriespondingg ii'iipifmfed i-iie Meting machine Come` if: siii@ meuiii en upright Supwed ie n, suitable base 3.

11:" et? the em'liuais of het is roi/ated' by any wie" cieli with seid shaft by' H' l mici mounted en said fing; e, channeled. rim 'i' e i i dimmed ianges 7 im receive z n rimedi @if ,:eiiieiiiei' either p'iiietie mi ie im y e ibeii'eci therein etoiles, Miei@ weimeii bleeim ei' the likev indicated geiwawiiiy :ail 9.; iiefeie seid annuius 8 hui'- =riii- (i Le ivi he prei" f of melding. it Wili be iimfeiremi iiief'; 'die meules 8 is te have different peviieue of im suifiee 'provided with different kinds eff: weer maieiinl such as f1eeeiibeii Se kim/i1 the time being feseii will be nifijeeeii ite eubeiaiiitiziliy the Same eeiidi izieiie Limi; they would be when passing; wel@ m'dimiay i'i'eewiiye.

l()ii'i1iieeie`;-1 in, speedemeieisuitably momien ed airiim: iii; m the @thrift 4i, mei gezwei'i te i zi'iiei, si. y by aim-me mit piniene 11 and 12 te indicate the speed which the Siieii; may be ofemted.

T e two tei'miimis of each @if the sills; have their upper sui-faces pifevided with gireeved; extensions 13 en which are siidzdifv 50 mounted bars l; by menne o Him' si ffiijis 15 engaging said. groeve@ siem iii aeeieii 21. The (zi-ess bei" 17S ai he etheif ensfi ef the machine frame has ene membe ei? zi pl'essui'e gage i?? seemed ihelezo, whiie he f5 other member 2S of seid pressure i", up secured te a plete 29.1 Seid pressure ing ae; shm'viiv in Fig. l in the )mtime ei zi. Spring balanced see-ie, the i'eeii'iber .0 Vimi eylinrih'ieei, while the member mounted 'within said yiimi with :i piiilie B0 @needing in the member 2&3A 32 iiidee--, f meuned in Smid member v he emi of ie iiiembei' li a5 indient@ rods eeimeetiiw ing; teimimiiss of the pimms 55e nini rode 33 having their termin* with e plm'elity ef epeni. the platee and 29 @my :is te mijixst the pressure o the mi be iiei-eimfiei" desei'befi en the si the :ilumine indicate vehicle Wheels mmiiiteii fm shaft 16 and in pesiiejn te im eeieii ing machine,

in operatief; ii; Wii be @ppm-ent die@ eiiiiei the wheel@ :me iiieuiitei mi the @hei i6 and the pressure of, the rims of miei wheels mi the :mnulus @is iegulaiei'i by means ei' 100 kho hund Wheel 22 mid indicated by the pressure gege 27, the shef ffiis; ruhixd mid by the engagement of the :ilumine 8 with the rime oi said Wheels 35, .raid whees wiii 'be eetlmte und bearing against the eur 105 fece of mid fiminine Wil cause the rime et? Seid wheels ie expeirieiiee viie seme Wearing; fiction -hiii, they week?, if used en :i im? pasuiiig over iemivyaye having different ein feces, the speecri at which iie emi'f 4 is.: 11e

rotated being indicated as heretofore stated by means of the speedometer 10.

It will be apparent that by my improved construction the pressure of the wheels on the annulus 8 may be adjusted to corre- .spend with the pressure of the wheels on the roadway when the vehicle is run light or loaded as desired and furthermore, that the/'wearing qualities of the tires at different speeds may be clearly ascertained through.

the use of the speedometer as described. Having thus described my invention what I claim 1s 1.,'In a. tire testing machine, side sills.

suitably supported, a shaft journaled intermediate of the ends of said sills, means to rotatesaid shaft, a Wheel secured to said shaft, the rim of said wheel haring ernbedded therein materials corresponding to different classes of roadway surfaces, bars slidably mounted on said sills, shafts journaled on said bars and adapted to receive vehicle wheels and hold them in engagement- Willi the rim of the first mentioned wheel, and means to adjust said bars relatively to the first mentioned wheel to reguv 2. A tire testing machine comprising side sills, a shaft journaled intermediate of the ends of said side sills, means to rotate said shaft, a testing Wheel secured to said shaft, bars slidably mounted on saidA side sills and havingshafts mounted thereon and adapted to receive vehicle wheels to be tested, cross bars connecting the first mentioned bars in pairs, a plate mounted adjacent to each of said cross bars, the terminals of said plates being connected by means of rods, a pressure gage mounted on one of said cross bars and the plate adjacent thereto, and means mounted on the other cross bar and the plate ladjacent*thereto to adjust the cross bars relati'velfvY to said plates.

In testimony in presence oi two witnesses.

KARL W. SONNTAG.

lditnesses: y

ATHoNY J. vVi/hImUss, En. DAiRR.

whereof I my signature 

